prueba

float r; float g; float b; float a; void setup() { size(880, 920); background(140); } void draw() { if (mousePressed) { fill(0); } else { fill(r,g,b,a); r = random (255); g = random (255); b = random (255); a = random (255); } ellipse(mouseX, mouseY, 20, 20); fill (r,g,b,a); }

import processing.video.*;

float r;
float g;
float b;
float a; 
void setup() {
 
size(880, 920);
 background(14);
}
 
void draw() {
if (mousePressed) {
 fill(0);
 } else {
 fill(r,g,b,a);
 r = random (255);
g = random (255);
b = random (255);
a = random (255);
}
ellipse(mouseX, mouseY, 20, 20);
fill (r,g,b,a);

}